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NC-2009 IEQc4.1:Low-Emitting Materials—Adhesives and Sealants

"Other" Sealants and Sealant Primers

What is the definition of the "Other" category in Rule 1168? I have a BASF product identified as a non-porous sealant primer with 584 g/l that they say complies with EQ4.1 on their letterhead. Ordinarily I would consider this an Architectural Sealant primer which has a 250 g/l limit for non-porous. The Other category limit is very high and will accommodate this product. But without a definition for what constitutes "Other", it just seems as if this category is being used because it works and the other one doesn't. How do I know whether this product can really be consider an Other Sealant Primer?

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Thu, 03/21/2013 - 15:15

Michelle, I wouldn't take a manufacturer's classification at face value, especially when they seem to be using a bit of a loophole like this. I think your call is the right one.

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